Washer Weight Chart is an important engineering reference that is used to find out the weight, size and dimensional properties of flat and spring washers in metric (mm) standards. It is used by procurement engineers, fabrication teams and export buyers to work out shipping costs, draw up BOMs and make certain that fasteners are compatible in structural and industrial assemblies.
Jade Alloys provides stainless steel and alloy fasteners all over the world such as in Germany, Europe, the Middle East and North America. When purchasing washers, weight data can be used to help optimize logistics, prevent cost overruns and ensure engineering accuracy for critical applications, including oil & gas, construction, marine and heavy machinery.
For the latest washer weight chart checkout the tables given below.
Washer Weight Chart
| Size (Metric) | Plain Punched(IS:2016) | Heavy Washer(IS:6610) | Machined(IS:2016) | Spring Flat(IS:3063-72) | Spring Square(IS:6735-72 / DIN:7980) |
| M-3 | 0.01 | — | 0.01 | — | — |
| M-4 | 0.02 | — | 0.02 | — | — |
| M-5 | 0.04 | — | 0.04 | 0.03 | 0.03 |
| M-6 | 0.11 | — | 0.11 | 0.08 | 0.04 |
| M-8 | 0.20 | 0.21 | 1.10 | 0.16 | 0.11 |
| M-10 | 0.39 | 1.60 | 0.40 | 0.25 | 0.20 |
| M-12 | 0.58 | 1.90 | 0.62 | 0.38 | 0.23 |
| M-14 | 0.82 | — | — | 0.60 | 0.38 |
| M-16 | 1.06 | 2.90 | 1.13 | 0.89 | 0.59 |
| M-18 | 1.27 | — | — | 0.97 | 0.66 |
| M-20 | 1.64 | 4.40 | 1.72 | 1.52 | 1.23 |
| M-22 | 1.75 | — | — | 1.65 | 1.36 |
| M-24 | 3.11 | 6.30 | 3.30 | 2.62 | 1.81 |
| M-27 | 3.94 | 8.00 | 4.23 | 2.87 | 2.06 |
| M-30 | 5.05 | 10.10 | 5.36 | 4.43 | 3.20 |
| M-33 | 7.10 | 12.00 | 7.54 | 6.30 | 3.50 |
| M-36 | 8.73 | 14.60 | 9.20 | 6.73 | 5.25 |
| M-39 | 12.60 | 16.70 | 13.30 | 7.17 | 5.61 |
| M-42 | 17.50 | 20.10 | 18.30 | 11.10 | 8.00 |
| M-45 | 21.20 | 22.20 | 22.00 | 11.70 | 8.53 |
| M-48 | 28.40 | 26.00 | 29.40 | 12.30 | 9.00 |
| M-52 | 31.90 | — | 33.00 | 18.20 | — |
| M-56 | 47.90 | — | — | 19.30 | — |
| M-60 | 51.60 | — | — | 20.30 | — |
| M-64 | 55.40 | — | — | 21.80 | — |
| M-68 | 57.40 | — | — | — | — |
| M-72 | 63.40 | — | — | 24.00 | — |
Washer Size Chart
The washer weight chart and size chart are very important things for any user before placing any order. These tables will help to select the correct size and weight material according to their usage.
| Nominal Size (mm) | Inner Dia (d)Basic | Inner DiaTol (+) | Outer Dia (d1)Max | Width (b)Basic | WidthTol (±) | Thickness (s)Basic | ThicknessTol (±) | Weight per1000 pcs (kg) |
| 3 | 3.1 | 0.3 | 6.2 | 1.3 | 0.10 | 0.8 | 0.10 | 0.114 |
| 4 | 4.1 | 0.3 | 7.6 | 1.5 | 0.10 | 0.9 | 0.10 | 0.185 |
| 5 | 5.1 | 0.3 | 9.2 | 1.8 | 0.10 | 1.2 | 0.10 | 0.360 |
| 6 | 6.1 | 0.4 | 11.8 | 2.5 | 0.15 | 1.6 | 0.10 | 0.838 |
| 8 | 8.1 | 0.4 | 14.8 | 3.0 | 0.15 | 2.0 | 0.10 | 1.600 |
| 10 | 10.2 | 0.5 | 18.1 | 3.5 | 0.20 | 2.2 | 0.15 | 2.530 |
| 12 | 12.2 | 0.5 | 21.1 | 4.0 | 0.20 | 2.5 | 0.15 | 3.820 |
| 14 | 14.2 | 0.5 | 24.1 | 4.5 | 0.20 | 3.0 | 0.15 | 6.010 |
| 16 | 16.2 | 0.8 | 27.4 | 5.0 | 0.20 | 3.5 | 0.20 | 8.910 |
| 18 | 18.2 | 0.8 | 29.4 | 5.0 | 0.20 | 3.5 | 0.20 | 9.730 |
| 20 | 20.2 | 1.0 | 33.6 | 6.0 | 0.20 | 4.0 | 0.20 | 15.200 |
| 22 | 22.5 | 1.0 | 35.9 | 6.0 | 0.20 | 4.0 | 0.20 | 16.500 |
| 24 | 24.5 | 1.0 | 40.0 | 7.0 | 0.25 | 5.0 | 0.20 | 26.200 |
| 27 | 27.5 | 1.0 | 43.0 | 7.0 | 0.25 | 5.0 | 0.20 | 28.700 |
| 30 | 30.5 | 1.2 | 48.2 | 8.0 | 0.25 | 6.0 | 0.20 | 44.300 |
| 33 | 33.5 | 1.2 | 55.2 | 10.0 | 0.25 | 6.0 | 0.20 | 63.000 |
| 36 | 36.5 | 1.2 | 58.2 | 10.0 | 0.25 | 6.0 | 0.20 | 67.300 |
| 39 | 39.5 | 1.2 | 61.2 | 10.0 | 0.25 | 6.0 | 0.20 | 71.700 |
| 42 | 42.5 | 1.2 | 68.2 | 12.0 | 0.25 | 7.0 | 0.25 | 111.000 |
| 45 | 45.5 | 1.2 | 71.2 | 12.0 | 0.25 | 7.0 | 0.25 | 117.000 |
| 48 | 49.0 | 1.5 | 75.0 | 12.0 | 0.25 | 7.0 | 0.25 | 123.000 |
| 52 | 53.0 | 1.5 | 83.0 | 14.0 | 0.25 | 8.0 | 0.25 | 182.000 |
Spring Washers – Square Section IS 6735-1972 Chart
| Nominal Size (mm) | Inner Dia (d)Basic | Inner DiaTol (+) | Outer Dia (d1)Max | Width (b) / Thickness (s)Basic | Width / ThicknessTol (±) | Weight per1000 pcs (kg) |
| 3 | 3.1 | 0.3 | 5.6 | 1.0 | 0.10 | 0.105 |
| 4 | 4.1 | 0.3 | 7.0 | 1.2 | 0.10 | 0.195 |
| 5 | 5.1 | 0.3 | 8.8 | 1.6 | 0.10 | 0.370 |
| 6 | 6.1 | 0.4 | 9.9 | 1.6 | 0.10 | 0.425 |
| 8 | 8.1 | 0.4 | 12.7 | 2.0 | 0.10 | 1.050 |
| 10 | 10.2 | 0.5 | 16.0 | 2.5 | 0.15 | 1.960 |
| 12 | 12.2 | 0.5 | 18.0 | 2.5 | 0.15 | 2.280 |
| 14 | 14.2 | 0.5 | 21.1 | 3.0 | 0.20 | 3.800 |
| 16 | 16.2 | 0.8 | 24.4 | 3.5 | 0.20 | 5.940 |
| 18 | 18.2 | 0.8 | 26.4 | 3.5 | 0.20 | 6.600 |
| 20 | 20.2 | 1.0 | 30.6 | 4.5 | 0.20 | 12.300 |
| 22 | 22.5 | 1.0 | 32.9 | 4.5 | 0.20 | 13.600 |
| 24 | 24.5 | 1.0 | 35.9 | 5.0 | 0.20 | 18.100 |
| 27 | 27.5 | 1.0 | 38.9 | 5.0 | 0.20 | 20.600 |
| 30 | 30.5 | 1.2 | 44.1 | 6.0 | 0.20 | 32.000 |
| 33 | 33.5 | 1.2 | 47.2 | 6.0 | 0.20 | 35.000 |
| 36 | 36.5 | 1.2 | 52.2 | 7.0 | 0.25 | 52.500 |
| 39 | 39.5 | 1.2 | 55.2 | 7.0 | 0.25 | 56.100 |
| 42 | 42.5 | 1.2 | 60.2 | 8.0 | 0.25 | 80.000 |
| 45 | 45.5 | 1.2 | 64.0 | 8.0 | 0.25 | 85.300 |
| 48 | 49.0 | 1.5 | 67.0 | 8.0 | 0.25 | 90.000 |
Spring Washers Flat and Square Section — BSS 1802-1951 Dimension Chart
| Size (Inches) | Size (mm) | Flat Section(Width × Thickness) | Square Section(Width & Thickness) |
| 1/8” | 3.18 | 1.2 X 0.8 | — |
| 5/32” | 3.97 | 1.6 X 0.8 | — |
| 3/16” | 4.76 | 2.3 X 1.2 | 1.6 |
| ¼” | 6.35 | 2.3 X 1.6 | 1.8 |
| 5/16” | 7.94 | 3.3 X 1.6 | 2.0 |
| 3/8” | 9.53 | 3.7 X 1.6 | 2.3 |
| 7/16” | 11.11 | 4.1 X 1.6 | 2.6 |
| ½” | 12.70 | 4.1 X 2.3 | 3.0 |
| 9/16” | 14.29 | 4.9 X 2.3 | 3.3 |
| 5/8” | 15.88 | 4.9 X 3.3 | 3.7 |
| ¾” | 19.05 | 5.9 X 3.3 | 4.5 |
| 7/8” | 22.23 | 6.4 X 3.3 | 5.4 |
| 1” | 25.40 | 7.1 X 4.7 | 5.9 |
How to calculate washer weight yourself
You can manually calculate washer weight using a simple engineering formula:
Weight (kg) = Volume (cm³) × Density (g/cm³) / 1000
Volume formula for washer:
Volume = π/4 × (OD² − ID²) × Thickness
Where:
OD = Outer Diameter (cm)
ID = Inner Diameter (cm)
Thickness = Washer thickness (cm)
Example: M16 Stainless Steel Washer
Assume:
OD = 3.0 cm
ID = 1.7 cm
Thickness = 0.3 cm
Density (SS 304) = 7.93 g/cm³
Step 1: Volume
= π/4 × (9 − 2.89) × 0.3
= π/4 × 6.11 × 0.3
≈ 1.44 cm³
Step 2: Weight
= 1.44 × 7.93 / 1000
≈ 0.0114 kg (11.4 grams)
This method is widely used in engineering procurement when verifying a washer weight chart for non-standard sizes.
Washer materials and how they affect weight
Different materials affect washer weight due to density variations.
| Material | Density (g/cm³) |
| Stainless Steel 304 | 7.93 |
| Stainless Steel 316 | 8.00 |
| Carbon Steel | 7.85 |
| Alloy Steel | 7.80 |
SS 316 washers are slightly heavier due to higher nickel and molybdenum content.
Carbon steel washers are marginally lighter but less corrosion resistant.
Material selection directly impacts total project weight in large industrial orders.
For complete fastener systems, explore our range of stainless steel fasteners.
Washer standards used in global engineering
DIN 125 (Flat Washers)
Standard flat washers for general engineering applications are defined in DIN 125 and are used in Europe, India and exported projects throughout the world. It provides uniform OD, ID and thickness tolerances.
DIN 127 (Spring Washers)
Helical spring lock washers are covered by DIN 127. They are commonly found in the automotive and heavy-duty industries.
ANSI B18.22 (American Standard)
This standard applies to washers for use in U.S. industrial and structural applications, and provides compatibility with the U.S. imperial fastener systems.
Related engineering resources
To support your procurement planning, explore:
These resources help build a complete fastener weight reference system for industrial applications.
Need washers in SS 304, SS 316, Hastelloy or Inconel? Contact Jade Alloys for competitive pricing and fast delivery.
